1. VA Boston Healthcare System, Outpatient Geriatric Mental Health, Brockton, MA, USA
2. Department of Psychiatry, Harvard Medical School, Boston, MA, USA
3. Nursing Division, VA Boston Healthcare System, Brockton, MA, USA
4. Clement J. Zablocki VA Medical Center, Milwaukee, WI, USA
5. Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA